20920

Names of 20920

• Cardinal: 20920 can be written as Twenty thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.092 × 10⁴

Factors of 20920

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 530

Divisors of 20920

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 5 8 10 20 40 523 1046 2092 2615 4184 5230 10460 20920
• Sum of all divisors σ(n): 47160
• Sum of proper divisors (its aliquot sum) s(n): 26240
• 20920 is an abundant number, because the sum of its proper divisors (26240) is greater than itself. Its abundance is 5320

Bases of 20920

• Binary: 101000110111000₂
• Hexadecimal: 0x51B8
• Base-36: G54

Squares and roots of 20920

• 20920 squared (20920²) is 437646400
• 20920 cubed (20920³) is 9155562688000
• The square root of 20920 is 144.6374778541
• The cube root of 20920 is 27.5541632241

Scales and comparisons

• 20,920 seconds is equal to 5 hours, 48 minutes, 40 seconds.
• To count from 1 to 20,920 would take you about five hours.

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20920 cubic inches would be around 2.3 feet tall.

Recreational maths with 20920

• 20920 backwards is 02902
• The number of decimal digits it has is: 5
• The sum of 20920's digits is 13
• More coming soon!